Bearing for yarn spools and the like



W. BIXBY BEARING FOR YARN SPOOLS AND"THE LIKE July 13 1926.

Filed Oct. 4. 1923 Patented July 13, 1926.

UNITED STATES WALTER BIXBY, OF BOSTON, MASSACHUSETTS, ASSIGNOB TOSHAWMUT ENGINEER- ING- GOMPANY, OF BOSTON, MASSACHUSETTS,

SETTS.

A CORPORATION OF MASSACHU- BEARING FOR YARN SPOOLS AND THE LIKE.

Application filed October 4, 1923. Serial No. 666,617.

This invention deals with the problem of providing means for quickly andconveniently removing the yarn-spools from their bearing supports, whilemaking provision for preventing their accidental removal from thebearing while the yarn-spool is in use. The improvement is particularlyintended to meet the requirements of yarnspools used in tube frames fortuft weaving, and especially relates to the intermediate bearings whichsupport the adjacent or abutting ends of two adjacent spool sectionsmounted in the tube frame.

To this end the invention comprises, generally speaking, the combinationwith the carrier bar and its yarn-spool, of supporting brackets firmlysecured to the carrier bar or support to operatively position the spool,one of said brackets being provided with an axially movable bearingmember capable of being moved into and out of operativesupporting'bearing engagement with the spool either to retain the spoolin working position or to permit its withdrawal from the tube frame whenthe other becomes exhausted or for any other reason. This and otherfeatures characteristic of the invention will be explained in thefollowing specification, and will be defined in the claims heretoannexed.

In the accompanying drawings I have illustrated a simple and convenientconstruction and arrangement embodying the principles of this invention,in which:

Figure 1 is a side elevation of a portion of a tube frame showing thecooperating bearing brackets forming a support for one section of thespool.

Figure 2 is an end elevation showing the intermediate bearing bracket, Ithe carrier bar being shown in cross section.

Figure 3 is a detail view in central section showing the adjustablebearing member carried by the intermediate bracket in position forremoval of the spool.

Figure 4 is a view similar to Figure 1 with the addition of a tension orspring device to yieldingly maintain the movable bearing member inoperative position overlapping the two matched ends of the spool.

Figure 5 is an elevation of the journalsleeve positioning spring.

In the practice of the invention, accord ing to the formillustrated inthe drawings, I employ a carrier bar 1, of any suitable or well knownconstruction, provided at each endwith a suspension hanger, one arm 2,of which is shown at the right of Figure l alongside of the end bearingbracket 3, which is perforated to receive the end journal of the yarnspool 7.

In the longer tube frame the spools are usually made in sectionsplacedend to end with an intermediate bearing bracket for supporting theadjacent ends of two adjacent spools.

In the present instance this intermediate bearing bracket comprises astandard having a right angle supporting foot 4, by which it is securedto the top of the carrier bar and preferably has a reenforcing angleplate 5 also secured to the top of the carrier bar and extending upwardnearly to the bearing portion of the bracket l.

Spool 7, has the usual heads 8 and 9, and its inner bearing journal 10is of larger diameter than its outer end journal 10*, and istransversely grooved to receive a tongue or rib projecting from theend'of the bearing journal 10 of the adjacent spool to insure uniformrotation of both spools, in accordance with the usual practice.

Instead of following the usual practice of mounting these spools to havebearing engagement directly with the bearing perforation formed in theupper end of the in termediate bracket 4, I have inserted in saidopening a special bearing member 6, of tubular form whose end edges arespun up to form slight stop flanges or ribs 6 to pre vent it fromdropping out of its supporting bracket. This tubular bearing member ismade short enough to allow endwise play between the two spool heads andis so disposed that it is in normal or operative position to overlap andsupport both intermatched bearing journals when pushed toward the right,as shown in Figure 1. When pressed toward the left, as shown in Figure3, it will uncover the journal of the right-hand yarn-spool so as topermit disengagement thereof in order that the spool may Ordinarily thefrictional engagement between the slidable or telescopic bearing member6, in its supporting aperture of the be lifted bodily out of the tubeframe.

bracket 4, will suffice to prevent accidental displacement. However, toinsure against any possibility of accidental displacement, any suitableform of spring may be used to exerta pressure tending to press or movethe bearing member into operative position to sustain both yarn spools.Such a spring may be conveniently made in the form of a dished spring orwasher 12, having radial slots to make it yieldable under pressure. Sucha spring, inserted in the manner shown in Figure 4, may be placed on theslidable bearing member when .it is inserted in the supporting bracket,and thereafter the edge of the bearing member, being spun up to form alip or flange, serves to receive the thrust or pressure of said spring.Any number of these intermediate brackets may be used according to thenumber of spool sections, but for present purposes it sufiices to showthe operative relation of one such bracket to the spools supportedthereby.

What I claim is:

1. The combination of a carrier bar, adjacent spool sections mounted inbrackets carried by said carrier bar, the bracket between said spoolsections being provided with a bearing member normally having journalbearing engagement with the adjacent journals of both said spools topermit them to rotate, and being shiftable axially out of bearingengagement with one of said journals to permit removal of the latter,substantially as described.

2. A bearing for a yarn spool embracing in its construction, anapertured bracket adapted to be secured to its support, a slidablytubular bearing member slidably mounted in the aperture of the bracketto overlap the abutting ends of two yarn spooljournals placed end toend, and movable into position to uncover one of said journals to permitremoval of one of the spools, substantially as described.

3. .A bearing bracket for the yarn-spool of a tube-frame, embracing astandard adapted to be secured to the carrier-bar of the tube-frame tostand between two adjacent yarn-spools, an axially arranged tubularsleeve open at both ends mounted in said standard to normally affordbearing support for the abutting journals of two aligned yarn-spools,said sleeve being movable axially to uncover one of such journals topermit the removal of one spool while supporting the other, and meansfor yield ingly pressing the sleeve into normal bearing position for thesupport of both journals, substantially as described.

4. A bearing bracket for a tube-frame yarn-spool, embracing a standardadapted to be secured to the carrier-bar of a tubeframe, a tubularbearing sleeve of substantially greater axial length than the thicknessof said standard supported in said standard to permit said sleeve tomove a:-;- ially, said sleeve being provided at its opposite ends withprojecting stop members to prevent its removal from the standard, and aspring interposed between one of said step members and the standard toyieldingly retain the sleeve in journal-bearing position while allowingits retraction from such position at will, substantially as described.

In witness whereof, I have subscribed the above specification.

WALTER BIKE Y.

